电磁场曝露对生物组织电磁特性的影响

Effects of Electromagnetic Field Exposure on Electromagnetic Properties of Biological Tissues

电磁辐射严重影响着人体的健康.电磁场生物效应的发生机制与电磁场本身的特性相关,同时也与生物组织在电磁场作用下电磁特性的改变密切相关.生物体内的信号分子、自由基以及磁颗粒等处于外加电磁场中时其电磁特性会发生变化,尤其是不同频率电磁场曝露作用下生物组织的导电、介电以及磁学等特性会有非常显著的区别.明确不同频率电磁场作用下生物组织电磁特性的变化规律是研究电磁场生物效应发生机制以及预防问题的关键.综述了近年来电磁场对于生物组织电磁特性影响的研究成果,并对未来的研究方向做了展望.

Electromagnetic radiations affect human health seriously. Bio-effects of electromagnetic fields mechanisms closely depend on the properties of themselves. Moreover, electromagnetic properties of signaling molecules, radicals and magnetic particles within body will be changed in electromagnetic fields, especially the conductivity, dielectric and magnetic properties of biological tissues will be significant difference when biological tissues exposure to various frequency electromagnetic fields. Identifying the evolution of electromagnetic properties of biological tissues is a key issue to explore underlying mechanisms and prevent electromagnetic bio-effects. Effects and applications of biological tissues in electromagnetic fields are summarized, and several future research directions are put forward.